<ul>
    <li>Chia sẻ</li>
    <li><a href="javascript:void(0);" onclick="facebook_share()"><img src="<?php echo base_url(); ?>static/images/icon/facebook.png" alt="Share to facebook" title="Share to facebook"/></a></li>
    <li><a href="javascript:void(0);" onclick="twitter_share()"><img src="<?php echo base_url(); ?>static/images/icon/twitter.png" alt="Share to twitter" title="Share to twitter"/></a></li>
    <li><a href="mailto:"><img src="<?php echo base_url(); ?>static/images/icon/mail.png" alt="Share to email" title="Share to email"/></a></li>
</ul>